Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Houston, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
832-925 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-925 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-925 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-925 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-925 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-925 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-925 5 HSTATX757MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560      
832-925 6 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-925 7 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-925 8 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-925 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-927 A HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 0 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 1 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 2 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 3 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 4 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 5 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 6 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 7 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 8 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-927 9 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-929 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 0 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 1 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 2 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 3 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 4 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 5 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 6 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 7 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 8 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-929 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-930 A HSTNTXJAXXX  156J RCLEC, INC. 560      
832-930 0 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 3 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 4 HSTNTXJAXXX  156J RCLEC, INC. 560      
832-930 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 6 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 7 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-930 9 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-933 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 0 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 1 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 2 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 3 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 4 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 5 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 6 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 7 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 8 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-933 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 0 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 1 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 2 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 3 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 4 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 5 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 6 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 7 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 8 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-938 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-940 A HSTNTX01X7X  516C AT&T CORP. 560      
832-940 0 HSTNTX01X7X  516C AT&T CORP. 560      
832-940 1 HSTNTX01X7X  516C AT&T CORP. 560      
832-940 2 HSTNTX01X7X  516C AT&T CORP. 560      
832-940 3 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-940 4 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-940 5 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-940 6 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-940 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-940 8 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-940 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-941 A HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-941 0 HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
832-941 1 HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
832-941 2 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-941 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-941 4 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-941 5 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-941 6 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-941 7 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-941 8 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-941 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-942 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-942 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-942 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-942 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-942 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-942 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-942 5 HSTATX757MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560      
832-942 6 HSTATX757MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560      
832-942 7 HSTATX757MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560      
832-942 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-942 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-943 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.